I'm having a back tooth in my jaw pulled this morning (ouch!), and trips to the dentist have never been fun for me. Please think of me as you solve today's mentalfloss.com Brain GameWednesday Wordplay challenge. I made it a bit easier than most, so that you can focus on channeling all your pain-free healing power to me. Thanks, everyone!

By changing one letter in each step to form English words, and leaving all other letters in their original positions, convert PULLS into TOOTH in the fewest possible steps.